/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlets;

import java.io.IOException;
import java.util.Calendar;
import java.util.Date;
import javabeans.JBReserva;
import javabeans.JBUsuario;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.UnavailableException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.List;
import persistencia.ISistema;

/**
 *
 * @author Bruno
 */
public class listadoReservasServlet extends HttpServlet {

    ISistema i;

    @Override
    public void init() throws ServletException {
        super.init();
        /*Se adquieren los parametros configurados en el deployment describer a 
         * nivel del contexto*/
        try {
            ServletContext context = this.getServletContext();
            i = persistencia.Fabrica.getPersistenciaSistema(context);

        } catch (Exception exc) {
            throw new UnavailableException("No se puedo instanciar el servlet" + exc.toString());
        }
    }

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        HttpSession session = request.getSession();
        try {
            JBUsuario usuario = (JBUsuario) session.getAttribute("login");
            String fechaSistema = (String)session.getAttribute("fechaSistema");

            Date fecha = Calendar.getInstance().getTime();
            if (fechaSistema != null) {
                fecha = i.StringToDate(fechaSistema, 0, 0);
            }


            List<JBReserva> reservas = i.obtenerReservas(usuario.getCi(), fecha);
            if (!reservas.isEmpty()) {
                session.setAttribute("reservas", reservas);
            } else {
                request.setAttribute("error", "Ud. no tiene reservas activas actualmente");   
            }
            request.getRequestDispatcher("listarReservas.jsp").forward(request, response);

        } catch (Exception exc) {
            request.setAttribute("error", "Ha ocurrido un error " + exc.toString());
            request.getRequestDispatcher("listarReservas.jsp").forward(request, response);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
